CARBORUNDUM


Meaning of CARBORUNDUM in English

/ ˌkɑːbəˈrʌndəm; NAmE ˌkɑːrb-/ noun

[ U ] ( chemistry ) a very hard black solid substance, used as an abrasive

••

WORD ORIGIN

late 19th cent. (originally US, as a trademark): blend of carbon and corundum

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.